Setting time out in apache http client

Question

I'm using Apache http client 4.3.2 to send get requests. What I have done is:

private final RequestConfig requestConfig = RequestConfig.custom()         .setConnectTimeout(1000)         .setConnectionRequestTimeout(1000)         .setSocketTimeout(1000)         .build(); private final HttpClient client = HttpClientBuilder.create()         .disableAuthCaching()         .disableAutomaticRetries()         .disableConnectionState()         .disableContentCompression()         .disableCookieManagement()         .disableRedirectHandling()         .setDefaultRequestConfig(requestConfig)         .build();  

And when sending request:

HttpGet request = null;  try {     request = new HttpGet(url);     if (client.execute(request).getStatusLine().getStatusCode() == 200) {         /* do some work here */     } } catch (Exception e) {     Logger.error(e); } finally {     if (request != null) {         request.releaseConnection();     } } 

But some of my requests still takes long time to timeout. This is stack trace of exception:

java.net.SocketTimeoutException: Read timed out     at java.net.SocketInputStream.socketRead0(Native Method)     at java.net.SocketInputStream.read(SocketInputStream.java:152)     at java.net.SocketInputStream.read(SocketInputStream.java:122)     at org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:136)     at org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:152)     at org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:270)     at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140)     at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57)     at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260)     at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:161)     at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)     at java.lang.reflect.Method.invoke(Method.java:606)     at org.apache.http.impl.conn.CPoolProxy.invoke(CPoolProxy.java:138)     at com.sun.proxy.$Proxy0.receiveResponseHeader(Unknown Source)     at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271)     at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)     at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:254)     at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195)     at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:186)     at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)     at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)     at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57) 

Is there any other time out value I should set? What am I doing wrong?

Answer 1

When I had this problem I changed my request to configure the timeout on each request.

//... HttpRequestBase request = new HttpGet(url); //or HttpPost  RequestConfig.Builder requestConfig = RequestConfig.custom(); requestConfig.setConnectTimeout(30 * 1000); requestConfig.setConnectionRequestTimeout(30 * 1000); requestConfig.setSocketTimeout(30 * 1000);  request.setConfig(requestConfig.build());  CloseableHttpResponse response = client.execute(request); //... 

It worked fine.

Answer 2

Here is a code snippet example to achieve the goal :

int timeout = 5; RequestConfig config = RequestConfig.custom()   .setConnectTimeout(timeout * 1000)   .setConnectionRequestTimeout(timeout * 1000)   .setSocketTimeout(timeout * 1000).build(); CloseableHttpClient client =  HttpClientBuilder.create().setDefaultRequestConfig(config).build(); 

That is the recommended way of configuring all three timeouts in a type-safe and readable manner.

Here is the full detail